Hi,
I have two aneursyms. I had an unruptured PCOM artery clipped in March 2007 and have a 11mm one on the carotid artery that is untreated. The last year has been quite a ride!!!! I had no symptoms.. They were found by accident on a MRI I got after getting atypical symptoms with Bell's Palsey. I would be in no hurry to get yours treated if they are small. Once they are larger I feel it is crazy not to get them clipped or coiled if they are where they would cause a stroke. Even though they might never rupture, a subarachnoid stroke has a high mortality rate. My untreated aneursym is behind my right eye and is positioned where it wouldn't bleed into my brain if it ruptured and cause a stroke. If it ruptures I could easily lose my sight in that eye, but getting it treated is a judgement call. It's in a bad place to treat and even though it is large it causing no problems at the moment. Talk to the best doctors you can find and ask lots of questions.